Bibi and Tina, The Circus Pony

Bibi and Tina are horrified: Ringmaster Rondelli wants to take his pony Snoopy to the butcher because it can't jump high enough anymore. The two friends want to save Snoopy. But how? When Bibi entertains the circus audience with her witchcraft, she actually gets the pony as a gift. But, can Ringmaster Rondelli be trusted?